Nawaz started the over with a dot before conceding a single off the next.
He was unlucky on the third delivery, which the batsman managed to edge fine, beating the keeper and racing to the boundary.
100 up for Sri Lanka with a single off the fourth delivery.
He managed to raise Pakistan’s hopes with a peach of a delivery on the last ball which beat the batsman, Janith Liyanage, and crashed into the stumps.
Sri Lanka are now down 5 wickets.
